Eccentric connection for card condensers



March 10, 1931. J WNSHULL 1,796,040

ECCENTRIC CONNECTION FOR CARD CONDENSERS Filed July 5. 1929 FIE. 5.INVENTOR.

ATTORNEYS.

Patented Mar. 10, 1931 UNITED STATES PATENT OFFICE.

JOHN A. MINSHULL, OF WHITINSVILLE, MASSACHUSETTS, ASSIGNOR T WHITIN MA-CHINE WORKS, OF WHITINSVILLE, MASSACHUSETTS, A CORPORATION OF MASSA-CHUSETTS ECCENTRIC CONNECTION FOR CARD CONDENSERS Application filed July3,

This invention relates to an eccentric connector capable of generalapplication but particularly designed for use in a card condenser.

In such machines, the apron rolls are oscillatcd or reciprocated axiallyat high speed,

the number of reciprocations being commonly above 300 per minute.

Eccentric connections have been used to produce such reciprocations, buttrouble has been encountered from overheating if the rate ofreciprocation was increased substantially above 300 reciprocations perminute.

This was a serious limitation, as an increase in the speed ofreciprocation of the apron rolls was frequently very desirable.

A general object of my invention is to provide a form of eccentricconnector operable at a higher speed than the old form of connector andwithout overheating.

A further object is to provide for more eilective and reliablelubrication of such an eccentric connector.

My invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claims.

A preferred form of the invention is shown in the drawings in which Fig.1 is a plan view of my improved eccentric connector, together withportions of a card condenser;

Fig. 2 is a side elevation, partly in section, of the construction shownin Fig. 1 and Fig. 3 is an end view of one of the eccentric members,looking in the direction of the arrow 3 in Fig. 1.

Referring to the drawings, I have inclicated a portion of apair ofaprons 10 and 12, mounted upon suitable rolls 13 secured at one end in across head 15, by which said rolls and aprons may be reciprocated. Adrive shaft 20 is mounted to rotate about an axis perpendicular to theplane of movement of the aprons and is provided with an adpistabledouble eccentric for each apron.

The two parts of each eccentric may be relatively adjusted to vary thethrow of the eccentrio and thus determine the amount of reciproeatingmovement of each apron, but the details of construction of theadjustable eccen- 1929. Serial No. 375,690.

trics form no part of my present invention and need not be furtherdescribed.

My improved eccentric connector comprises eccentric members 30 and 32which are secured together in definite spaced relation by binding bolts34 and a plurality of nuts 36, some of which act as lock nuts.

The eccentric member 30 is adjustably secured to the shank 410 of amember tl, pivoted to the cross head 15 by a stud 42. The parts 30 and10 may be adjusta-bly secured to each other by set screws 44 or in anyother convenient manner.

It will be noted that each of the eccentric members 30 and 32 engage theeccentric over somewhat less than one third of its circumference andthat consequently somewhat more than one third of the surface of theeccentric member isfree at all times when the machine is in operation.This in itself tends to a cooler running of the eccentric, as somewhatmore than one third of its circumferenceis at all 1 times exposed to theatmosphere. I

I have also provided novel and very effective oiling means for myimproved eccentric connector. For this purpose I provide an oil well orrecess 50 in the upper side of each eccentric member 30 or 32, this oilchamber extending down substantially to the center of the thickness ofthe connector and having an oil hole 52 leading from each end of the oilwell to a portion of wick or other similar material 54, secured to theends of the eccentric members 30 and 32 by clamps 56 and screws 57, orin any other convenient manner.

As these eccentrics commonly oscillate in a horizontal plane and aredriven by a vertical shaft, the oil chambers 50 in the upper facesthereof are well adapted to receive and distribute the necessarylubricant. The oil is conveyed through the oil passages 52 to the wicks54 by which a thin film of oil is transferred direct to the surface ofthe eccentric.

While an oil connection and wick at the leading side of each eccentricmember might be sufficient Where an eccentric is always rotated in asingle direction, I find it desirable to use an oil passage and wick ateach side of the connector, thus making the device reversible and alsoproviding for wiping the eccentric as it leaves the eccentric member, aswell as for providing oil to the eccentric as it entersthe'bearingportion of the eccentric member. 5 The second wick tends toretain the oil in the bearing segment between each eccentric member andthe rotating eccentric and to keepthe eccentric wiped clean of oil anddust when; open to the atmosphere. 7 Ithasbeen found that an eccentricconnection of the type above described is capable of use at asubstantially higher. speed than the old typeof connector. Under actualtest my improved connector runs without overheating at 450 R. P. M. andwould apparently'run at a substantially greater speed, while the oldtype of connector began to seriously overheat it run above 325 R. P. M.Having thus described my invention and the advantages thereof, I do notwish 'to be limited to the details herein disclosed, otherwise than asset forth in the claims, but what I- claim is 1.'In a connector for adriving eccentric 25. operable in a horizontal plane .and comprising apair of connecting members and means to secure said members in spacedrelation, lubricating means for said members and eccentric comprising anopen oil well in the upper side of each connecting member, and means todistribute oil from said wells to the bearing-surfaces of said memberand said eccentric. I e s 2. A connector'for'a driving eccentric op- 135erable in a horizontal plane and comprising a pair of connectingmembers, means to secure said members inspaced relation, and means" tolubricate said members and eccentric, said lubricating means comprisingan oil well in 40 the upper side of each connecting member, and a pieceof wick material secured to each end of each connecting member, saidmember having oil passages connectingsaid oil well to eachpiece of wickmaterial. e 3. A connector for adriving eccentric operable in ahorizontal plane andcomprising a pair of connectingmembers, means tosecure said members in spaced relation, and means to lubricate saidmembers and eccentric, said 0 lubricating meanscomprisinga Wipingelementsecured to each end of each connecting member, and means tosupply oilthroug'h said wiping elementsto said eccentric, certainof saidwiping elements being also operable to remove excess-oil from thebearing surface ofsaid eccentric as it leaves bearing-engagementwitheach of said connecting members.

In testimony whereof I have hereunto atfixed my signature.

r JOHN A. -MINSHULL.

